1. Department of Orthopedics SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical College Beijing China
2. Department of Orthopedic SurgeryBeijing Jishuitan HospitalFourth Clinical College of Peking UniversityJishuitan Orthopaedic College of Tsinghua University Beijing China
3. Department of OrthopaedicsShaoxing People's HospitalShaoxing Hospital of Zhejiang University Shaoxing Zhejiang China
4. Department of Medicine and TherapeuticsThe Chinese University of Hong Kong Hong Kong Hong Kong
5. Department of Anaesthesia and Intensive CareThe Chinese University of Hong Kong Hong Kong Hong Kong
6. State Key Laboratory of Digestive Disease and LKS Institute of Health SciencesThe Chinese University of Hong Kong Hong Kong Hong Kong